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From:Johan De Meersman Date:November 11 2009 7:12pm
Subject:Re: storage difference in VARCHAR(size)?
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Your mail suggests that you *are* seeing a difference, though. What
are you seeing?

On 11/11/09, Martijn Tonies <m.tonies@stripped> wrote:
>>You have stumbled across the secret.  No, there is no difference at
>>all as the calculations suggested here confirm.
>>
>>http://dev.mysql.com/doc/refman/5.1/en/storage-requirements.html
>
> Note: as you can see in the above, CHAR data DOES take up room for it's
> full size, stupidly enough.
>
> On Tue, Nov 10, 2009 at 6:37 PM, Waynn Lue <waynnlue@stripped> wrote:
>> Hey all,
>>
>> I was building a table for storing email addresses today and ran into an
>> issue that I couldn't find an answer for using Google. If I declare the
>> column as a VARCHAR (this is an InnoDB table), does it matter what size I
>> declare it as if it's between 1 and 255? I know there's an extra byte of
>> storage once it goes above 255 because of the length, but is there a
>> storage
>> difference between VARCHAR(100) and VARCHAR(255)? Obviously there's a
>> functional difference in what gets cut off when I try to store into that
>> table, but is that the only difference?
>
> With regards,
>
> Martijn Tonies
> Upscene Productions
> http://www.upscene.com
>
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Thread
storage difference in VARCHAR(size)?Waynn Lue11 Nov
  • Re: storage difference in VARCHAR(size)?Michael Dykman11 Nov
  • Re: storage difference in VARCHAR(size)?Martijn Tonies11 Nov
    • Re: storage difference in VARCHAR(size)?Johan De Meersman11 Nov
      • Re: storage difference in VARCHAR(size)?Waynn Lue11 Nov
  • Re: storage difference in VARCHAR(size)?Martijn Tonies11 Nov
    • Re: storage difference in VARCHAR(size)?Johan De Meersman11 Nov